2105726 has 12 divisors (see below), whose sum is σ = 3674448. Its totient is φ = 902412.

The previous prime is 2105717. The next prime is 2105729. The reversal of 2105726 is 6275012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10646 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (306204).

2^2105726 is an apocalyptic number.

2105726 is a deficient number, since it is larger than the sum of its proper divisors (1568722).

2105726 is a wasteful number, since it uses less digits than its factorization.

2105726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21503 (or 21496 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2105726 is about 1451.1119874083. Note that the first 3 decimals coincide. The cubic root of 2105726 is about 128.1742012902.

The spelling of 2105726 in words is "two million, one hundred five thousand, seven hundred twenty-six".